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Jaehyuck Choi,Bong Ju Park 한국인간·식물·환경학회 2017 인간식물환경학회지 Vol.20 No.2
Green Infrastructure (GI) approach provides significant benefits to cities and communities. GI applications would provide multi-benefits such as the reduction in building energy demand, stormwater management, urban heat island reduction, habitat creation, etc. GI is nowadays considered as a multi-benefit best management practice (BMP) at diverse levels of government. The purpose of this study is to find out the positive effects of GI application, and Geographic Information System (GIS) is used for the accurate and efficient analysis. Two polygon data, ‘GreenRoof’ and ‘ParkingPlace’ are produced with a satellite imagery extracted from Google Earth Pro. These data are used to calculate total available spaces for green roof and permeable pavement in the campus of Chungbuk National University. After GI application in the campus, 13.2% of landcover is converted to green spaces and this change results in expanding the green network of Cheongju city. The result of this study shows that green roof application can absorb 4576.95 kg/yr of Carbon Dioxide and possibly reduce maximum 1,497,600L urban runoff. This study proves how GI is valuable for the city environment with quantitative analyses.
A Fundamental Study for The Possibility of Charcoal as Green Infrastructure Materials
Jaehyuck Choi,Soo Jeong Shin,Byung Ro Kim 한국목재공학회 2015 목재공학 Vol.43 No.5
To evaluate the possibility of charcoal as Green Infrastructure (GI) materials, data such as moisture content, amount of adsorbed water, and amount of evaporation were collected. Some data from previous study were referenced to find out if correlations exist between results in this study and previous study. Only porosity was directly related to moisture content. Two mechanical charcoal had better abilities than traditional charcoal in all three categories. Mechanical black charcoal chips produced by National Forestry Cooperative Federation (NFCFC) adsorbed 333.3% of water in thirty minutes, 297.5% in five minutes, and evaporated around 75% water in four days. This ability is much higher than other five charcoal. Even though results of test showed various degrees and NFCFC was the best as GI materials, data of charcoal were also within acceptable range based on generally accepted characteristics of GI materials.